The methodology is proposed to extension of existing method applying local color constancy to image patches, rather than on entire image globally. Many algorithms have to estimating the color constancy of the light sources are developed, but all existing methods are applied on single light source i.e they are consider an image is effected only single uniform illumination, this case is not every...

This paper describes the fundamentals of the image-resolved luminance and color measurement technique. Its aims and solutions are presented. The determination of image-resolved luminance and color measurements is the state-of-the-art in many applications, e.g. for road or street lighting. In today’s devices, luminance and color measuring cameras are attached to high-quality Charge Coupled Devic...

Webster’s asserts that color is “a phenomenon of light or visual perception that enables one to differentiate otherwise identical objects,” and then goes on to say that the Latin root is celare, “to conceal.” It’s a fine definition, because human perception of color is seamless to the extent that it conceals from us almost every causal detail. This talk will discuss common sources of light, the...

Spotlighting is one illumination field where the application of light emitting diodes (LED) creates many advantages. Commonly, the system for spot lights consists of a LED light engine and collimating secondary optics. Through angular or spatial separated emitted light from the source and imaging optical elements, a non uniform far field appears with colored rings, dots or patterns. Many feasib...

The characteristic colors of the different classes of algae and the striking changes in color of individuals (especially among the Cyanophyceae) have compelled the attention of botanists for many years. Engelmann (1883) observed the rate of assimilation of a number of kinds of algae in the different parts of the spectrum. He concluded that they assimilated fastest in light of a color complement...

A Color Quality Scale (CQS) is being developed at NIST, which evaluates several aspects of the quality of the color of objects illuminated by a light source. This metric involves several facets of color quality, including color rendering, chromatic discrimination, and observer preferences. The method for calculating the CQS is derived from modifications to the method used in the CIE's Color Ren...

strawberry as a very perishable fruit, is exposed to fungi pathogens especially botrytis cinerea, thus its storage life is very limited. the use of synthetic chemical compounds to control gray mold on strawberry as well as on other fruits that are directly consumed by humans, have become less and less advisable. on the other hand the use of non chemical and safe methods of controlling gray mold...

For structured-light range imaging, color stripes can be used for increasing the number of distinguishable light patterns compared to binary BW stripes. Therefore, an appropriate use of color patterns can reduce the number of light projections and range imaging is achievable in single video frame or in “one shot”. On the other hand, the reliability and range resolution attainable from color str...

color has the ability to inspire, excite, soothe, heal and even agitate. This is particularly true for children, who can be extra sensitive to color's impact. So the importance of picking out just the right color for a young child's room shouldn't be underestimated. When choosing colors to use for your rooms home it's important to think about the mood you want to create and whether you want it ...